Public work receipt · checkable record

CRYPTO price, saved and checkable

✓ This result hasn’t changed since it was saved.

Sent using Zambo

Saved:
What ran: live_price

Zambo is the verifiable work layer for AI.

Observed result

source receipt id: b8668959-4c5f-46a7-8a47-a2c691f0ab95 source output hash: sha256:290d75b19de87afd3c81ba4390c8ebdf2d97a73d3be1c64d48e337f287819f13 output: DOGE · $0.06887 USD ▼ 3.33% (24h) · Market cap: unavailable Live price via Coinbase · Sun, 08 Nov 2026 22:39:14 GMT redacted projection: true source commitment checked: true

This is the saved result preview, not proof that the answer was correct.

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Show technical provenance details

Provenance for every timeline entry

  • EXECUTED BY ZAMBOZambo ran the tool call itself.
  • OBSERVED VIA GATEWAYA Zambo gateway observed request and response bytes from the named external executor. Zambo did not run that external action.
  • LOGGED BY AGENTAn agent or local hook reported the action. Zambo attests that the record is unchanged since logging, not that the action happened as described.

Private agent reasoning, built-in client actions, and direct calls to unrelated MCP servers are not included unless an agent or gateway reports them.

What is this receipt?

This is a verifiable receipt for a journal entry. It confirms receipt, redaction, timestamping, and chaining. It does not attest to execution.

What the receipt can and cannot prove

What is this?

Zambo's receipt store reports a journal entry from an agent or local hook. The SHA-256 commitment covers the receipt bytes. The provenance label is only a claim, not proof of issuer identity or that the reported action happened.

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This receipt records a completed tool call. When the free allowance is not enough, choose the access path that fits the job.

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Show technical verification checks

Verification checks

  • SHA-256 commitment: Checked independently against the exact decoded bytes
  • Provenance binding: PASS; The metadata claim is consistent with the verified receipt bytes; issuer is not authenticated.
  • Metadata binding: PASS; metadata_hash matches the canonical metadata block.
  • Issuer authentication: NOT CHECKED; no pinned signing key or trusted issuer was supplied
  • Signature: NOT CHECKED; no Ed25519 signature or pinned key is supplied
  • Chain: NOT CHECKED; no append-only chain proof is validated
  • Stored timestamp: 2026-11-08T22:39:44.346Z; external immutability is not checked

Get proof like this from your own AI

Add to my AI ·

Get receipts for your own AI work: add zambo.dev/mcp

One URL, no key. Copy the line for your AI and add it yourself in its settings.

  • ClaudeSettings, Connectors, Add custom connector, paste the URL.
    https://zambo.dev/mcp
  • ChatGPTSettings, Apps and Connectors, developer mode, create a connector with this URL.
    https://zambo.dev/mcp
  • GrokAdd a remote MCP server in your Grok client and paste the URL.
    https://zambo.dev/mcp
  • CursorPaste into ~/.cursor/mcp.json.
    {"mcpServers":{"zambo":{"url":"https://zambo.dev/mcp"}}}

Nothing is installed automatically. Full setup guides

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Add Zambo Receipt Bot to your team · File this in Receipt Bot

Show receipt data and verification evidence

Committed provenance claim

LOGGED BY AGENT

The metadata claim is consistent with the verified receipt bytes; issuer is not authenticated.

Receipt ID
b9420a77-5693-4887-bd74-50ccb2bfa053
SHA-256 output hash
sha256:00df8f74820ef982dfcdea5fa02ed8fe5e1d3f11e228e8683977a1fe591ad8d8
Canonical bytes
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
Timestamp

Bound call context

Receipt schema
0.4
Tool name
live_price
Tool version
4.0.0
Permission scope
public
Caller type
session
Caller ID
sha256:6ad5c843171d7e550814a8ce60eaf078c770a610771a8c1c73e948128f5c05c0
Declared side effects
none
Side-effects schema
zambo-side-effects/1
Declaration hash
sha256:45aad38f3aa982b9aafe92ecb416ebe98791eddbaf8ab6df0bd08605b7c1bfee

This records what the server-side tool contract declared at call time. It does not independently verify that a downstream side effect happened.

Bound upstream evidence

Status
empty
Evidence SHA-256
unavailable
Byte length
unavailable

Neutral Nostr anchor

Event ID
af9a0482c301692e8042392ef6d1cee6e4b5fe2c966f4a1665fc19efcc3493fd
Anchor status
published
Public key
e13475107d30c918ec664adf2ab1141024a22fb35190f82c9e933704fa49af41

Relay hints: wss://relay.primal.net

Schema: zambo-receipt-anchor/1

Anchor envelope bytes:

{"anchored_at":"2026-11-08T22:39:44.346Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:00df8f74820ef982dfcdea5fa02ed8fe5e1d3f11e228e8683977a1fe591ad8d8","receipt_uuid":"b9420a77-5693-4887-bd74-50ccb2bfa053","schema_version":"zambo-receipt-anchor/1"}

Anchor status "published": Published to all configured relay targets.

Relay publication is separate from receipt integrity. When the original signed event is available, Zambo retries pending, partial, or failed anchors about once a minute. Relay acknowledgements are external, so there is no guaranteed completion time; the receipt remains checkable from its saved bytes and verification link.

Check this hash yourself

Receipt commitment: commitment matched; issuer, signature and chain not checked. This checks the saved bytes, not whether the answer was correct. Recompute the SHA-256 commitment in your browser. Open the API v2 JSON response to inspect the machine-readable checks. See the Nostr anchor event on a public viewer. The fingerprint is timestamped outside Zambo too.

Embed this receipt

Markdown

[![Verifiable Zambo receipt](https://zambo.dev/api/receipt/b9420a77-5693-4887-bd74-50ccb2bfa053/badge.svg)](https://zambo.dev/run/b9420a77-5693-4887-bd74-50ccb2bfa053?ref=badge)

HTML

<a href="https://zambo.dev/run/b9420a77-5693-4887-bd74-50ccb2bfa053?ref=badge"><img src="https://zambo.dev/api/receipt/b9420a77-5693-4887-bd74-50ccb2bfa053/badge.svg" alt="Verifiable Zambo receipt"></a>

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